R18 is Seaguar Japans premier fluorocarbon mainline with top-of-the-line overall performance. It delivers excellent performance in three key areas: strength, suppleness, and castability.

This line was created with Seaguars exclusive double-structure process with two custom Seaguar 100% fluorocarbon resins to create a line with exceptional knot and tensile strength.

Its soft, supple and very manageable – easy casting and very smooth coming off your reel.

They are offered on 100-meter spools which is 109 yards. Available in 4 through 20 lb. test including some unique, nontraditional sizes: 5, 7, and 14 lb. test